A splitting lemma for non-reflexive Banach spaces.

DOI10.7146/math.scand.a-11856zbMath0436.58005OpenAlexW2519014808WikidataQ124879894 ScholiaQ124879894MaRDI QIDQ3876714

Robert Magnus

Publication date: 1980

Published in: MATHEMATICA SCANDINAVICA (Search for Journal in Brave)

Full work available at URL: https://eudml.org/doc/166694

zbMATH Keywords

Fredholm condition for degenerate critical points of smooth maps on a Banach spacesplitting lemma for functions on a Banach space

Mathematics Subject Classification ID

Abstract critical point theory (Morse theory, Lyusternik-Shnirel'man theory, etc.) in infinite-dimensional spaces (58E05) Differentiable maps on manifolds (58C25)

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